barrett



A. M. BARRETT.

TRUCK. APPLICATION FILED JAN-21.1916- Patented July 8 3 SHEETSSHEET I.

A. M. BARRETT.

TRUCK.

APPLICATION FILED JAN-21.1916.

Patented July 8, 1919.'

3 SHEETS-SHEET 2.

MW @W NQ m I? R mmw i Q@ Q\\T A. M. BARRETT TRUCK.

APPLICATION FILED JAN. 21. I916- Patented Jui 8, 1919.

3 SHEETS-SHEET 3.

' p 'rn iox.

if duced cheaply and which shall be as adapt- To all whom it mayconcern:

' Be it known that I, ARTHUR a citizen of the United States, and aresident UNITED STATESPATENT oFr oE. A

Anrrrun m. BARRETT, or wmnnrxa, rumors.

Specification of Letters Patent.

Patented July 8, 1919.-

Application filed January 21, 1916. Serial No. 73,339. I

M. BARRETT,

of Winnetka, in the county of Cook, State of Illinois, have inventedcertain new and useful Improvements in Trucks, of which the'following isa specification, reference being had to the accompanying drawings.

My invention relates to trucks and particularly to that class ofelevating truck adapted tobe used with a-plurality of platforms underanyone of which the truck ,is

adapted to be run for lifting the platform' and carrying it to thedesired point. It is the principal object of my invention to pro-x videin a truck of this type a simplified construction and arrangement whichcan be proable as it can be made to effective use in close quarters. Itis another objectof my invention to improve trucks of this type insundry details hereinafter pointed out." The,

2 preferred means by which I have accomq application is set forth in theplished my objects are illustrated in the ac 'companying drawings andare hereinafter specifically described. That which I bea top view ofthetruck shown but with-the handle shown in the truck withthe elevatingframe in -raised position, showing a changed position of the handle;Fig. 6 is a vertical cross-section on' line 66 of Fig. 5;

Fig. 7 is a vertical cross-section taken on line 7-7 of Fig. 5';-

Fig.8 is a, detail view of the front axle member: Y 1 I Fig, 9 is alongitudinal vertical section taken substantially at the line 99 of Fig.I 2 but with the elevating frame in raised phsition; 4 Fig. 10 is alongitudinal vertical section. taken substantially at the line 10-10 ofsaid side-bars.

I Fig. 2, but with the elevating frame in raised position; .and Fig. 11is a detail view, being substantiallya vertical section taken on line11-11 Re erring to the several figures of the drawmgs in WhIChCOIIGSpOIIdlIIg parts are indicated by the same reference characters,--

. 20 indicates a cross-head or bolster comprismg the front member of thesupporting frame of the truck, having secured to it side-bars 21-22 (seeFigs. 4 and 7) The side-bars 21-22 are connected by a shaf t 23 at theirrear ends upon which are mounted supporting wheels 24-25. Q

'- The cross-head 20 comprises a vertical sleeve 26, as is best shown inFig. 7, in which is journaled the king-bolt portion 27 of the front axlemember 28. Mounted in' the axle member 28 is a shaft or axle-29,-

mounted upon which are .two supporting wheels 30-31. The king-bolt 27 isretained in the bearing sleeve 26 by means' of a flanged plate 32 whichextends'dotvn into the sleeve 26, being securedto the kin'g bolt 27 byany suitable means, as by bolts 33-a's' shown in Fig. 11. In theconstruction shown, the king-bolt 27 is provided with notches 34 intowhich lugs 35 carried by the plate 32 ex tend for strengthening theconnection of the plate 32 and the kingbo1t27.

36 indicates the front cross-bar of an ele-' vating frame which ismovable up and down relative to the supporting frame 22,01 the truck.The elevating frame comprises sidebars 37- 38 secured at their frontends to the cross-bar 36, being secured together at their rear ends by arod 39 (see Fig. 2).

' Links 40-41 having their lower ends mount ed on the shaft 23 aremounted at their up# I ends upon a cross-rod 42 mounted in side-bars37--38 near the rear ends of Additional links 43-44 connectthe rod 42with the. shaft 23, serving 'to reinforce 'the links 40--41. Aswill 'beper the readily understood, when the elevating frame is drawn forwardrelative to the supporting frame, the rear ends of the side-bars 37'-38will be raised out of contact with the sidebars 21 -22 through theaction of' the link connections between the supporting frame and theelevating frame.

Meansis provided, as hereinafter described, for simultaneously drawingthe elevating frame forward and raising its front end. In order toprovide for aproper de scent of .thefront end of the elevating framerelative to the supporting frame independently of the raising means, Ihave provided diagonally disposed slide blocks. In the constructlonshown (see Fig. 10), a chamfered extension45 depending from the crossbar 36 at each side coiiperates with a chamfered rearward extension 16carried by the cross-head 20. In order toease the descent of theelevating. frame as the extension a5 head 50 is movably secured to theyoke 51 and the cross-bar 52 by meansof cap-screws 53 extending throughflaring openings 5 L provided in said yoke and said cross-bar.

diagonal slide-blocks for holding the elevat- Means is providedinconnection with the ing frame in its raised position comprisin a hook55 secured to the cross-head adapted to be automatically engaged by a.

' foot-latch 56 which is pivotally mounted upon the cross-bar 36inposition tobe readilyoperated by the foot of the operator for releasingit from the hook 55. A spring 57 serves to hold the foot-latch 56 turnedto the limit of its movement in clockwise direction in Fig. 9, aslimited by suitable stops of any appropriate type.

By my construction I have provided for raising the front end of theelevating frame and moving it forward relative to the supporting frameby the use of the handle by which the front supporting wheels are turnedabout the king-bolt. 1 In the construction illustrated thisisaccomplished by a di rect engagement of the handle with theelevatingframe. In order to accomplish this *result without materiallylessening the adaptability of the truck for use in close quarters, Ihave mounted the handle upon a movable fulcrum- With the pivot point ofthe handle in its u permost and rearmost position, it is'adapte to beused for elevat ing purposes; whenmoved downward and forward the handleis adapted to clear the elevating frame so as to permit free swivel ingof the front wheels upon. the king bolt.

The plate 32 which serves to hold the king-bolt 27 within the bearingsleeve 26 is provided with lugs 58 extending upward therefrom. Each ofthese lu s is provided with a diagonally-extending s 0t 59, the said twoslots 59serving to movably support a pivot pm 60 mounted in the handle61. The

handle 61 is turned at its lower end substantially at right angles tothe major portion of its length, being provided with a notch 62 a shortdistance to one side of the'pivot pin 60. With the elevating frame inits lowered position, and with the pin 60 of the handle 61 moved to itsuppermost and rearmost position, the notch 60 is adapted to be brought,by a slight movementof the handle in clockwise direction in Fig. 1, intoengagement with the elevating frame, a pin 63 being provided to' furnisha bearing for the handle on such frame. Upon the further movement of thehandle in clockwise direction inFig. 1, the front end of the elevatingframe will be moved upward and forward,

as shown by a comparison of Figs. 1 and 3,

the real. end of the elevating-frame being at the same time raisedthrough thaaction of the links by which it is connected with .thesupporting frame. In the construction shown, a-bracket 64 formedintegrally with the cross-bar 36 is provided for supporting the bearingpin 63 of the elevating frame, the bracket being bifurcated at its upperend to lprovide spaced supports for said pin.

s is shown In Fig. 5, the turned end of the handle 61, when the pin 60is in its lowcred forward position, and with the elevating frame in 1tsraised position, is adapted to clear the elevating frame so as to permitthe handle to be turned vertically from hori- 'zontal position tovertical position, and to be turned horizontally 'entlrely about .theking-bolt except as 'such turning is limitedby the engagement of thelonger arm' of -the handle with the elevating frame. As will beappreciated froman inspection of Fig. 1,

is attained with the elevating frame in its lowered position and withthe pin 60 in its,

lowered forward position. I elevating frame either-raised or lowered thesupportlng. wheels 30-31 are free to be turned as desired relative tothe vertical bearing sleeve 26 for the king-bolt 27, where- Thus withthe the same freedom of movement of the handle by the truck can bereadily manipulated in close quarters as may be required.

I have found from practice that when the pin 60 is pushed to the upperends of the slots 59 and pressure is applied to the handle to give it anoperative stroke for raising the elevating frame, such an operative;

stroke caneasily be efl'ected'without danger ofthe pin 60 movingvdownward alongsaid slots. In this operation, in the constructionillustrated, the slide-block 45 is lifted out of contact with theslide-block 46, such slideblocks being brought into effective operationonly to assist the hook 55 and the latch lever 56 holding the elevatingframe in raised position and subsequently in the lowering of theel'evatingframe relative to the sup-.

porting frame.

By reason of the foot-latch 56. being accordingly.

hookf55 also tendsto move the elevating frame downward. Moreover if itis desired, the attendant can, after releasmg the foot-lever 56, withoutchanging his position apply the required pressure for causing thedownward movement of the elevating frame. This is important, inasmuch asthe weight 'of the elevating frame, as it is desirable to' make it, isbarely suflicient to cause such frame to descend against the resistanceof the construction shown, I have provided a spring 47* for assisting inthe downward movement of the elevating frame, as'will bereadily'appreciated. 1

So far as I am aware, I am the first in the art to provide a movablefulcrum for a truck handle by which the handle may be utilized forraising' the elevating frame without materially decreasing the"adaptability of the truck .for its desired move ments, and, my claimsareto be construed What-I claim as my invention and desire to secure byLetters Patent, is'

4 i ,1. In a truck, the combination of a main frame, a supportingwheeljournaled upon a horizontal axis and adapted to turn about H, avertical. axis relatively ,to said frame, a handle operatively connectedwith said supporting wheel'for guiding the truck, an up w'ardly-movableelevatingframe mounted on said main frame, and means rigidly carfried bysaid handle and'movable therewith :Qinto and out of position to directlyengage said'elevating frame for lifting the same. 40

2. truck comprising a main frame, a steering wheel connected therewith,a handle connected with said steering wh'eel for guid ing the same, saidhandle. being -pi voted to swing in a vertical plane,an elevating framemounted on said main frame and movable up and down relatively thereto,and meansv rigidly caa'ried by said handle and adapted to'directly,engage and lift said elevating frame when said handleis swungdownwardly.

3. In a truck, the combination of a frame, a ,lever ,operativelyconnected with said i 1 frame and adapted to swing relativetherefirst-named frame, said lever being adapted to in either of twopositions thereon, and an elevating frame movable relative to said toswing in one position upon its connections independently of theelevating'frame and adapted' alternatively by swing ng in the otherposition upon its connections to directly engage said elevating framefor raising it relative to said first-named frame. 4. In a truck, thecomblnatlon of a frame, an elevating-frame movable up and down 66relative to said first-named frame, and. a

a ing adapted to'be given a swinging move as an axis when the fulcrum isin another on a fulcrum which is movable relative to; said first-namedframe independently of any lateral swinging of the lever, said lever be-70 ment about its fulcrum as an axis independently of said elevatingframe when the fulcrum is in one position, and being adapted by aswinging movement about its fulcrum position to have direct engagementunderneath a portion of said elevating frame for raising said framerelative to said firstnamed frame.

5. In a truck, the combination of a frame, an elevating-frame movable upand down relative to said first-named frame, and a lever vmounted on afulcrum movable upposition and being adapted by an operative stroke withthe fulcrum in its upper rear- -most' position" to have directengagement with said elevating-frame for moving said frame upwardrelative to the first-named frame.

6. In a truck, the combination of a frame, a front axle-member revolublymounted on a vertical axis upon said frame, supporting means for saidfront axle-member comprising a supporting wheel journaled thereon on ahorizontal axis, an elevating frame movable up and down relative to saidfirstnamed frame, and a handle connected with said axle-member forturning it for guiding the truck, the connections between saidaxlememberand said handle comprising a slot 105 in said axle-member, anda pin carried by said handle and adjustable to either of two operativepositions along said slot, said handle being adapted to swing withoutcontacting with the said first-named frame when the pin is in one of itssaid two positions and being adapted by an operative stroke with the pinin its other operative position to directly engagesaid elevatingframeand to move said frame upward relative to thefirst-named frame.

7. In a truck, the combination of a frame, a front axle-member revolublymounted on a vertical axis upon said frame, supporting means for saidfront axle-member comprising a supporting wheel journalcd thereon on ahorizontal axis, an elevatingframe movable up and down relative to saidfirstnamed frame, and a handle connected with said axle-member forturning it for guiding the truck, the connections between said axle-member and said handleicomprising aslot in said axle-member extendingdiagonally upward and backward, and a pin carried by said handle andmovable along said slot,

said handle being adapted to swing without contacting with theelevating-frame when the pin is in the lower forward end of said slotand being adapted by an operative stroke with the pin in the upperrearward end of said slot to have direct detachable engagement with saidelevating-frame for moving said frame upward relative to the first-namedframe.

8. In a truck, the combination of a frame, a supporting wheel, aking-bolt connecting said supporting wheel with said frame, a handleoperatively connected with said kingbolt for turning said supportingwheel about the king-bolt as an axis for guiding the truck and alsoadapted to swing vertically, and an elevating frame movable relative tosaid first-named frame, the connections between said king-bolt and saidhandle comprising a bracket carried by said king-bolt and provided withan obliquely-extending slot, and a pivot pin mounted in the handle andmovable longitudinally of said-slot,whereby said handle is adapted inits lowered forward positioii in said slot to swing independ ently ofthe elevating frame and is adapted by astroke in its rearward uppermostposition in said slot to engage said elevating frame for raising itrelative to said first- 30 named frame.

9. In a truck, the combination of a frame, a supporting wheel journaledupon a horizontal axis and adapted to turn upon a vertical axis relativeto said frame, a handle operatively connected with said supporting Wheelfor turning it about said vertical axis for guiding the truck and alsoadapted to swing vertically, and an elevating frame movable relative tosaid first-named frame, the connection between said supporting wheel andsaid handle being adjustable whereby the handle is adapted to beoperated in either of two positions, said handle being adapted in oneposition to swing independently of said elevating frame and adapted by astroke in the other position to effect a detachable engagement with arigid portion of the elevating frame for raising said elevating framerelative to said firstnamed frame. I

10. A truck comprising a main frame, a steering wheel connectedtherewith, a handle connected with said steering wheel for guiding thesame, said handle being pivoted to swing in a vertical plane, anelevatin frame mounted on said main frame an movable up and downrelatively thereto, and means rigidly carried by said handle and adaptedto directly engage and lift said elevating frame when said handle isswung downwardly, said handle being mov able into and out of operativerelation with said elevating frame.

11. In a truck, the combination of a frame,

a supporting wheel, a king-bolt connecting handle in the form of a bellcrank lever pivotally mounted at its angle on a horizontal axis on saidking-bolt for turning said supporting wheel about the king-bolt as anaxis for guiding the truck, and an elevating frame movable relative tosaid first-named. frame, the connections between said lever and saidking-bolt comprising a pivot pin and slot along which the pivot pin ismovable, whereby the short arm of the lever is adapted to swingindependently of the elevating frame in one position of the leverrelative to the slot, andwhereby said short arm of the lever is adaptedby a stroke in the other position of the lever relative to the slot todetachably engage said elevating frame for raising it relative to saidfirst-named frame.

12. In a truck, the combination of a frame, supporting wheels mountedthereon, a lever operatively connected with said frame and adapted toswing vertically relative thereto, and an elevatingframe movablerelative to said first-named frame, the connections between said leverand said first-named frame being movable relative'to said first-namedframe whereby the said lever is adapted to swing in one positionindependently of the elevating frame and is adapted by a stroke in itsother position to detachably engage said elevating frame for raising itrelative to said first-named frame, such engagement of the lever withthe elevating frame serving to prevent the lever from moving outof itsoperative elevating position.

18. In a truck, he combination of a frame, supporting wheels mountedthereon, a lever operatively connected with said frame and adapted toswing vertically relative thereto, and an elevating frame movablerelative to said first-named frame, the connections between said leverand said first-named frame being movable relative to said first-namedframe whereby the said lever is adapted to swing in one positionindependently of the elevating frame and is adapted by a stroke in itsother position to detachably engage said elevating frame for raising itrelative to said first-named frame, said lever being provided with asuitable notch adapted to be brought into engagement with the elevatingframe serving to prevent the lever from moving during the raising"operation out of its effective elevating position.

14. In a truck, the combinationof a frame, an elevating frame movablerelative thereto, elevating links pivotally connecting the rear endsofsaid frames, obliquely-disposed slideblocks mounted on said frames neartheir forward ends adapted to cooperate for supporting the forward endof the elevating frame during the lowering operation, and meanscooperating with said links for raising said elevating frame relative tosaid first-named frame and serving during the raising operation to movesaid slide-blocks out of operative engagement with each other.

15. In a truck, the combination of a frame, an elevating frame, meansconnecting the rear end portions of said frames adapted upon movement ofone frame longitudinally relative to the other to raise or lower therear end of said elevating frame relative to said first named frame,supporting means carried by the forward end portions of said framesrespectively adapted to hold the forward end of said elevating frame inraised position when said frames are held against longitudinal movementrelative to each other after a raising operation, and a leveroperatively connected with one of said frames near its forward endadapted by itself by an operative stroke in engagement with the otherframe to raise the forward end of the elevating frame without the aid ofsaid supporting means and at the same time to move one of said frameslongitudinally relative to the other for raisin the rear end of theelevating frame relative to the other frame.

16. A truck comprising a main frame, a steering wheel connectedtherewith, an elevating frame movably mounted on said main frame, ahandle connected with said steering wheel for guiding the same, andmeans carried by said handle and adapted to operatively engage saidelevating frame to lift the same when said handleis swung in onedirection, the pivot of said handle being shiftable to move said handleinto and out of operative relation to said elevating frame.

17. A truck comprising a main frame, a

steering wheel connected therewith, an elevating frame mounted on saidmain frame to move forward and upward relatively thereto, a handleconnected with said steering wheel for guiding the same, said handlebeing pivoted to swing in a vertical plane and the pivot of said handlebeing shiftable toward and from said elevating frame, and means rigidlycarried by said handle and adapted to engage and lift said elevatingframe when said handle is moved into operative relation to saidelevating frame.

18. A truck comprising a main frame, a steering wheel connectedtherewith, an elevating frame mounted on said main frame to move forwardand upward relatively thereto, a handle connected with said steeringwheel for guiding the same, said handle being pivoted to swing in avertical plane and the pivot of said handle being shiftable toward andfrom said elevating frame, and

means rigidly carried by said handle and adapted to directly engage andlift said elevating frame when said handle is moved into operativerelation to said elevating frame.

19. A truck comprising a main frame, a steering wheel connectedtherewith, a handle connected with said steering wheel for guiding thesame, said handle being pivoted to swing in a vertical plane, anelevating frame mounted on said main frame to simultaneously moveforward and upward relatively thereto, and means rigidly carried by saidhandle and adapted to engage and lift said elevating frame when saidhandle is swung downwardly.

ARTHUR M. BARRETT.

